[llvm-commits] [llvm] r62418 - /llvm/trunk/test/CodeGen/X86/2009-01-16-UIntToFP.ll

[Bill Wendling]

Author: void
Date: Sat Jan 17 01:42:44 2009
New Revision: 62418

URL: http://llvm.org/viewvc/llvm-project?rev=62418&view=rev
Log:
Testcase for last commit.

Added:
    llvm/trunk/test/CodeGen/X86/2009-01-16-UIntToFP.ll

Added: llvm/trunk/test/CodeGen/X86/2009-01-16-UIntToFP.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/2009-01-16-UIntToFP.ll?rev=62418&view=auto

==============================================================================
--- llvm/trunk/test/CodeGen/X86/2009-01-16-UIntToFP.ll (added)
+++ llvm/trunk/test/CodeGen/X86/2009-01-16-UIntToFP.ll Sat Jan 17 01:42:44 2009
@@ -0,0 +1,31 @@
+; RUN: llvm-as < %s | llc -march=x86
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
+target triple = "i386-apple-darwin8"
+
+define hidden float @__floatundisf(i64 %u) nounwind readnone {
+entry:
+	%0 = icmp ugt i64 %u, 9007199254740991		; <i1> [#uses=1]
+	br i1 %0, label %bb, label %bb2
+
+bb:		; preds = %entry
+	%1 = and i64 %u, 2047		; <i64> [#uses=1]
+	%2 = icmp eq i64 %1, 0		; <i1> [#uses=1]
+	br i1 %2, label %bb2, label %bb1
+
+bb1:		; preds = %bb
+	%3 = or i64 %u, 2048		; <i64> [#uses=1]
+	%4 = and i64 %3, -2048		; <i64> [#uses=1]
+	br label %bb2
+
+bb2:		; preds = %bb1, %bb, %entry
+	%u_addr.0 = phi i64 [ %4, %bb1 ], [ %u, %entry ], [ %u, %bb ]		; <i64> [#uses=2]
+	%5 = lshr i64 %u_addr.0, 32		; <i64> [#uses=1]
+	%6 = trunc i64 %5 to i32		; <i32> [#uses=1]
+	%7 = uitofp i32 %6 to double		; <double> [#uses=1]
+	%8 = mul double %7, 0x41F0000000000000		; <double> [#uses=1]
+	%9 = trunc i64 %u_addr.0 to i32		; <i32> [#uses=1]
+	%10 = uitofp i32 %9 to double		; <double> [#uses=1]
+	%11 = add double %10, %8		; <double> [#uses=1]
+	%12 = fptrunc double %11 to float		; <float> [#uses=1]
+	ret float %12
+}